
#com_message{
    width: 150px;
    height: 50px;
    line-height: 50px;
    color: #fff;
    font-size:12px;
    text-align: center;
    position: fixed;
    left: 50%;
    top: 50%;
    margin-top: -25px;
    margin-left: -75px;
    background: rgba(0,0,0,.3);
    border-radius: 4px;
    transition: all 10s ease-out;
    transform: scale(1);
    opacity: 0;
    z-index: 10000;
}